of: merge of_find_node_by_phandle

Merge common function between powerpc, sparc and microblaze. Code is
identical for powerpc and microblaze, but adds a lock (and release) of
the devtree_lock on sparc.

Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

3 files changed, 0 insertions, 54 deletions

diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index 8171282a0b0d..f7bd0ee8d481 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -176,27 +176,6 @@ void __init early_init_devtree(void *params)
  *
  *******/
 
-/**
- *      of_find_node_by_phandle - Find a node given a phandle
- *      @handle:        phandle of the node to find
- *
- *      Returns a node pointer with refcount incremented, use
- *      of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_phandle(phandle handle)
-{
-        struct device_node *np;
-
-        read_lock(&devtree_lock);
-        for (np = allnodes; np != NULL; np = np->allnext)
-                if (np->phandle == handle)
-                        break;
-        of_node_get(np);
-        read_unlock(&devtree_lock);
-        return np;
-}
-EXPORT_SYMBOL(of_find_node_by_phandle);
-
 #if defined(CONFIG_DEBUG_FS) && defined(DEBUG)
 static struct debugfs_blob_wrapper flat_dt_blob;
 
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index f954c718d7eb..28be19ab0f18 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -766,27 +766,6 @@ void __init early_init_devtree(void *params)
  *******/
 
 /**
- *      of_find_node_by_phandle - Find a node given a phandle
- *      @handle:        phandle of the node to find
- *
- *      Returns a node pointer with refcount incremented, use
- *      of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_phandle(phandle handle)
-{
-        struct device_node *np;
-
-        read_lock(&devtree_lock);
-        for (np = allnodes; np != 0; np = np->allnext)
-                if (np->phandle == handle)
-                        break;
-        of_node_get(np);
-        read_unlock(&devtree_lock);
-        return np;
-}
-EXPORT_SYMBOL(of_find_node_by_phandle);
-
-/**
  *      of_find_next_cache_node - Find a node's subsidiary cache
  *      @np:    node of type "cpu" or "cache"
  *
diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c
index 5832e13dfeeb..57ac9e28be0c 100644
--- a/arch/sparc/kernel/prom_common.c
+++ b/arch/sparc/kernel/prom_common.c
@@ -37,18 +37,6 @@ EXPORT_SYMBOL(of_console_path);
 char *of_console_options;
 EXPORT_SYMBOL(of_console_options);
 
-struct device_node *of_find_node_by_phandle(phandle handle)
-{
-        struct device_node *np;
-
-        for (np = allnodes; np; np = np->allnext)
-                if (np->phandle == handle)
-                        break;
-
-        return np;
-}
-EXPORT_SYMBOL(of_find_node_by_phandle);
-
 int of_getintprop_default(struct device_node *np, const char *name, int def)
 {
         struct property *prop;